Feel like your allergies are getting worse year after year? They probably are.

This year allergies are particularly bad, thanks to record rain in parts of the South and Northeast.

“The rain is a big driving factor this year,” Dr. Cliff Bassett, a New York allergist and fellow with the Asthma and Allergy Foundation of America, told Weather.com. “Grass pollen is flourishing this allergy season. Ragweed is here to stay.”

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The length of the allergy season is also an issue. Just because the season started earlier, doesn’t mean it will end earlier.

“In Texas they’re having issues with the precipitation increasing the length of the grass pollen season, which usually is calming down as you get info fall,” Bassett said. “But this year’s precipitation is producing record grass [pollen] levels.”

"The prevailing theory has to do with the has to do with our seasons," Dr. Carr said. "There's a warming trend in our environment, so we're seeing a much more favorable growing environment for weeds."

As to why more people (particularly children) have allergies, Dr. Carr said there are multiple theories for that as well.

"That's the million dollar question," he said. "If we knew 100 percent why more people are experiencing allergies, we could potentially do some preventative care for people."

Most experts believe the hygiene hypothesis, he said. "It states, in summary, that in olden times, people got bad diseases and fought them off. Now, we vaccinate people, there's indoor plumbing. Once the body's immune system comes out of the womb, it's not being challenged as much," he said. "The immune system is essentially getting a little bit confused and over-reacting to pollen."